If you take two balls randomly out of a jar of colored balls, there is a 50% chance that the balls will both be red.
What is the total percentage of red balls in the jar?
(In reply to
solution by Keedom)
no, because once youve picked out 1 red ball, theres 1 less red ball to take out. so you need two fractions that equal 1/2 when multipied. 2/3 and 3/4 fit this, and it is the only answer to the problem.

Posted by sassy
on 20040513 19:36:19 